package luiz.questao2;

//public class Electronic implements Device
//{ public void doIt() { } }
//
//abstract class Phone1 extends Electronic { }
//
//abstract class Phone2 extends Electronic
//{ public void doIt(int x) { } }
//
//class Phone3 extends Electronic implements Device
//{ public void doStuff() { } }
//
//interface Device { public void doIt(); }
